/*
 *  PPDictionary.m
 *  PigeonsFoundation
 *
 *  Created by Jacob Basham on 1/13/07.
 *  Copyright 2007, PaperPigeons.net
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions 
 *  are met:
 *  1. Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *	2. Redistributions in binary form must reproduce the above copyright 
 *	   notice, this list of conditions and the following disclaimer in 
 *	   the documentation and/or other materials provided with the distribution.
 *	3. Neither the name of PaperPigeons.net nor the names of its contributors 
 *	   may be used to endorse or promote products derived from this software 
 *	   without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 *	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 *	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 *	FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 *	COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 *	INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 *	BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 *	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 *	CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 *	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 *	IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 *	POSSIBILITY OF SUCH DAMAGE.
 */

#import "PPDictionary.h"


@implementation NSDictionary (PPDictionary)

+ (id)dictionaryFromString:(NSString *)query 
	withValuesSetBy:(NSString *)setter 
	separatedBy:(NSString *)separator
{
	NSMutableDictionary * dictionary = [NSMutableDictionary dictionary];
	
	NSArray * pair;
	NSArray * paris = [[query  
				stringByReplacingPercentEscapesUsingEncoding:NSASCIIStringEncoding]
			componentsSeparatedByString:separator];
	NSEnumerator * enumerator = [paris objectEnumerator];
	
	while (pair = [[enumerator nextObject] componentsSeparatedByString:setter]) {
		if ([pair count] == 2 && [[pair objectAtIndex:0] isNotEqualTo:@""]) {
			[dictionary setValue:[pair objectAtIndex:1] 
				forKey:[pair objectAtIndex:0]];
		}
	}
	return dictionary;
}

- (id)queryStringWithValuesSetBy:(NSString *)setter 
	separatedBy:(NSString *)separator
{
	NSString * key;
	BOOL append = NO;
	NSEnumerator * enumerator = [self keyEnumerator];
	NSMutableString * query = [NSMutableString stringWithCapacity:60];
	
	while (key = [enumerator nextObject]) {
		if (append)
			[query appendString:separator];
		else
			append = YES;
			
		[query appendFormat:@"%@%@%@", key, setter, [[self valueForKey:key]
			stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];
	}
	return query;
}

@end
